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Finding the Fourth Proportional to 315,384.60, 435,272.43 and 179,392.29

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Solution

The fourth proportional to 315,384.60, 435,272.43 and 179,392.29 is: 247,585.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,384.60 : 435,272.43 = 179,392.29 : x
  2. Step 2: Convert to fraction form
    315,384.60/435,272.43 = 179,392.29/x
  3. Step 3: Cross multiply
    315,384.60x = 435,272.43 × 179,392.29
  4. Step 4: Simplify right side
    315,384.60x = 78,084,517,991.56
  5. Step 5: Solve for x
    x = 78,084,517,991.56/315,384.60
  6. Step 6: Final answer
    x = 247,585.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.